Why can’t I use my used copy for a Canvas course? Why do only UBC Bookstore copies work?

All purchases are verified and connected to your CWL account for access, which requires you to purchase the materials through the UBC Bookstore in order to get a receipt that provides the redemption codes. If the cashiers swipe your student card at the time of purchase, this will automatically grant you access . If you purchased your textbook second hand from another student, there is no way for you to activate your course materials in Canvas.